Pump mechanism.



B. OLSON.

PUMP. MECHANISM.

APPLICATION FILED APR. 25 1911. 1,917,993 Patented Feb. 20, 1912. v

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wwe/wtoz 61 Homwq a B. OLSON.

PUMP MECHANISM.

APPLICATION FILED APR. 25, 1911. 1,017,992. Patented Feb. 20, 1912.

2 SHEETS-SHEET 2. I

UNITED STATES rnrnw'ronrrcn BENNET OLSON,'OF GLENCOE, MINNESOTA, ASSIGNOR OF ONE-HALF'TO WILLIAM G; BURTMAN, OF WASECA, MINNESOTA.

Specification of Letters-Patent.

Patented-Feb. 20,1912.

Application filed April 25, 1911. Serial No. 623,221.

To all whom it may concern: Be it-lmown that. I, BENNET OLsoN, a cit.- 1zen of the United States, residing at Glen- :coe, inthe county of McLeod, State of Min nesota, have invented certain new and useful Improvements in Pump .Mechanisms;

and'I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilled. in the art to which it appertains-to make and use thesame- My invention relatesto new and useful E The primary object of my invention is the provision of a pump operating mechanism m which the pump rod will be reciprocated on manually swinging the operating handle of the pump in one direction, whereby a double stroke of. the'pump rod.;is.attained with a'minimum amount of leverage.

Another object of my invention'isthe provision. of a pump operating mechanism in which the plunger is raised and lowered within-the pumptubing byaquick and uniform motion, and where the. pump actuating mechanism may be so adjusted as to lengthen or shorten theistrokewithout dis-.

mantling the parts of thepump, thus obviating all subsequent leakage which is usually caused in, apump which. has been taken. apart. in order toadjustthe pump rod. And a stillfurther object of my inventionis' the provision of a pump operating" mechanism. adapted to be used in connection with all types of single stroke pumprods, thus adapting them to efiect a doublestroke, the

pump operating mechanism being so constructed as to enable the same to be used in connection'with pumps of all forms and forallpurposes.

" With these and other objects in view the invention consistsin the construction,,co mbination and arrangement of parts. which -will be hereinafter more fully described,

illustrated in the accompanying drawings disclosing a preferredzembodiment ofmy in vention andv pointed out in. the appended claim.

In the drawings in, which similar refers. ence numerals designate COIIfBSPOIldlIlggPEiItS- throughout, Figure-l, is a side elevation of a ump withmy operating mechanism applied thereto showing-the same at the bethe pump operating mechanism at the mid- -dle' of the stroke. Fig. 4 is a like view showing, the position of the mechanism at the end of the stroke. 2

I' have illustrated my improved pump ac- 'tuating-mechanism whichas a whole is des:

ignated by 1. as secured to and'supported by thecus'tomary form of pump casing 2, the supporting means consisting of the two members 3 and 4 of a splitcollar 5adapted tobe' secured; around the-top of the pump casing Qby means of bolts 6 passed'through the outwardly extending earsv :7.

Each of the members 3 and4 is provided'with an up-.

wardlyextendedl member, 8 terminating at,

their upper ends with the inwardly directed portions 9' which are provided-with laterally- .extending, ears 1O adaptedto be secured to- 1 gether by means of'bolts, rivets or other pre-v ferredfasteners 11., A pump rod-here designated as, 12 has one end. extended up wardly from thepump casing, andis reciprocally mounted in this frame with. its free end. extending above the terminals ot the. side. members 3" and 4-5. theseterminals being adapted to forma bearingfor. the red.

A, helical spring 13 surroundstheextended:

portion ofthe pump rod with its lowerend resting upon this bearing and its upper end, restingagainst a slidable, collar 14: which.

is mounted uponthe pump rod Hand {secured-in adjusted position by means of the set. nut 15. 'A second. collar lfitsimilan in construction to the. first but provided. with two oppositely extending studs 17. is also mounted upon the. pumpfrod, betweenrits upper and lower bearing and. secured in:

place by a set nut-18.

- A pair of bellv crank levers 19substantially right-angular in-shape andwithzthe arms20 and 21 arepivotally mounted: on the inner sidesof the side membepsS .andl le by means of studs 22 formedupon the exs tended portion23 of. the arms-.20, saidxstuds being adaptedtobe inserted in the alined apertures 24t-and225'tapped'in the lower portions of the-side-members 3 and 4.

Thequpperends of the arms 20areb1furgcated' to form elongated forks dthe sides of. which, are provided witha series of'alined bolt receiving apertures. A pair oflinks 27 are rotatably secured by-one endto the studs by means, of bolts orother preferred securing means 29. I

The ends of the arms 21 of the bell crank levers are enlarged to form the sector shaped terminals 30 which are provided with a se-' ries of apertures 31. The arms 21 are also provided with an aperture. 32, and a pump handle 33 is secured between the arms 21 by means of a bolt 34: and an adjusting pin 35, said adjusting pin in connection with the apertures 31 providing means whereby-the handle may be secured at any desired angle to the lever arms21.

The operation of the pump is easily understood by referring to Figs. 1, 3, and 6t of the drawings and tromthem it will be seen that as the handle 33 is raised it acts through I the. medium of the bell crank levers and the connecting links toraise the pump rod,.

which action is continued until the pump handle has been raised to a position at right angles to the pump, when a further raising of the handle will lower the pump rod to its original position. Upon thereverse stroke of the pump handle the pump rod is again raised and lowered in the same manner.

The spring 13 is compressed by each downture, in presence of two wltnesses.

ward stroke of the pump rod 12 and thus stores up energy to assist in the upward raising of the pump rod.

. It will be seen that by means of the spaced apart bolt receiving apertures provided in the forked ends of the lever arms 20 I have provided a simple and effective means by which the length of the stroke may be 40 readily regulated. It will also be seen that the means'employed in adjusting the pump handle 23 are such, thatthe handle may be readily adjusted without disconnecting it from the pump. I

It will be seen from the above that I have provided a simple and effective operating mechanism for use with double stroke pumps, and that this mechanism may be used upon all pumps in which a reciprocating pump rod is-used and for all purposes to which pumps of that character may be' adapted. I

What I claim is A pump actuating mechanism, comprising a frame adapted to be secured to a pump casing, a pump rod reciprocally mounted in said frame, a collar adjustably secured to said pump rod and provided with oppositely disposed trunnions, a pairof bell crank le-' vers having outwardly directed trunnions intermediate their length, said trunnions being journaled in the sides of the frame, links adjustably connecting one arm of each of said levers with one ofthe trunnions of said.

collar, a pump handle pivoted by oneend between the other arm of said lever, and

means for additionally and adjust-ably securing said handle between said lever arms.

In .testimony whereof, I afiix my signa-.

BENNET OLSON.

Witnesses:

J OHN Lurrnn, WILLIAM G. BURTMAN. 

